This man-made wonder is 1013 meters long covers 80 acres, its deepest end reaches 115ft and it holds 66 million gallons of water. If you want to take a dip in the world’s largest swimming pool you’ll have to travel to San Alfonso del Mar in Algarrobo, Chile, where a computer-controlled suction and filtration system continuously pumps water from the ocean, keeping crystal clear.

Although it wasn’t cheap, costing around $2 billion to build and another $4 million/year for maintenance, the pool seems to be worth it as it has been attracting huge crowds of curious tourists, since it opened in December.